Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame
A novel, modified coflow burner was developed to study the effect of charge injection from a non-thermal plasma into three helium-diluted laminar coflow diffusion ethylene flames. The frequency of the high voltage (HV) signal was varied to control the ion concentration (charge) injected into the fla...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170636 |
| _version_ | 1811695126473342976 |
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| author | Tan, Yong Ren Zong, Yichen Salamanca, Maurin Martin, Jacob W. Dreyer, Jochen A. H. Akroyd, Jethro Yang, Wenming Kraft, Markus |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Tan, Yong Ren Zong, Yichen Salamanca, Maurin Martin, Jacob W. Dreyer, Jochen A. H. Akroyd, Jethro Yang, Wenming Kraft, Markus |
| author_sort | Tan, Yong Ren |
| collection | NTU |
| description | A novel, modified coflow burner was developed to study the effect of charge injection from a non-thermal plasma into three helium-diluted laminar coflow diffusion ethylene flames. The frequency of the high voltage (HV) signal was varied to control the ion concentration (charge) injected into the flames. Optical emission spectroscopy was used to characterize the non-thermal plasma while a bias plate methodology was used to gauge the relative amount of charge generated. For different HV signal frequencies, the laser-induced fluorescence of OH, chemiluminescence of CH*, and laser-induced incandescence of soot in flames were measured. The OH and CH* measurements showed that the flames retained the classic flame shape with charge injection. Significant soot reduction was observed at low HV signal frequencies, corresponding to an increase in charge injection. Notably, at low HV signal frequency, soot reduction in highly concentrated (60%) ethylene flame is three times lower than the less concentrated (32%) ethylene flame. This can be attributed to the decrease in the injected charge to soot precursor concentration ratio when the concentration of ethylene in the flame is increased. These results demonstrate that the current system is a promising candidate for studying the charge effect from non-thermal plasma on soot formation in laminar coflow diffusion flames. |
| first_indexed | 2024-10-01T07:18:31Z |
| format | Journal Article |
| id | ntu-10356/170636 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:18:31Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1706362023-12-29T06:52:01Z Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame Tan, Yong Ren Zong, Yichen Salamanca, Maurin Martin, Jacob W. Dreyer, Jochen A. H. Akroyd, Jethro Yang, Wenming Kraft, Markus School of Chemical and Biomedical Engineering Cambridge Centre for Advanced Research and Education, Singapore Engineering::Chemical engineering Laminar Coflow Diffusion Flame Soot Volume Fraction A novel, modified coflow burner was developed to study the effect of charge injection from a non-thermal plasma into three helium-diluted laminar coflow diffusion ethylene flames. The frequency of the high voltage (HV) signal was varied to control the ion concentration (charge) injected into the flames. Optical emission spectroscopy was used to characterize the non-thermal plasma while a bias plate methodology was used to gauge the relative amount of charge generated. For different HV signal frequencies, the laser-induced fluorescence of OH, chemiluminescence of CH*, and laser-induced incandescence of soot in flames were measured. The OH and CH* measurements showed that the flames retained the classic flame shape with charge injection. Significant soot reduction was observed at low HV signal frequencies, corresponding to an increase in charge injection. Notably, at low HV signal frequency, soot reduction in highly concentrated (60%) ethylene flame is three times lower than the less concentrated (32%) ethylene flame. This can be attributed to the decrease in the injected charge to soot precursor concentration ratio when the concentration of ethylene in the flame is increased. These results demonstrate that the current system is a promising candidate for studying the charge effect from non-thermal plasma on soot formation in laminar coflow diffusion flames. National Research Foundation (NRF) Published version This research was supported by the National Research Foundation, Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme. Y. R. Tan acknowledges financial support from Fitzwilliam College Cambridge, Trinity College Cambridge and the Cambridge Trust. M. Kraft gratefully acknowledges the support of the Alexander von Humboldt Foundation. M. Salamanca is grateful with Universidad Nacional de Colombia-Sede Medellín for its support. 2023-09-25T02:20:18Z 2023-09-25T02:20:18Z 2023 Journal Article Tan, Y. R., Zong, Y., Salamanca, M., Martin, J. W., Dreyer, J. A. H., Akroyd, J., Yang, W. & Kraft, M. (2023). Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame. Combustion Science and Technology, 1-22. https://dx.doi.org/10.1080/00102202.2023.2206521 0010-2202 https://hdl.handle.net/10356/170636 10.1080/00102202.2023.2206521 2-s2.0-85159358109 1 22 en Combustion Science and Technology © 2023 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Engineering::Chemical engineering Laminar Coflow Diffusion Flame Soot Volume Fraction Tan, Yong Ren Zong, Yichen Salamanca, Maurin Martin, Jacob W. Dreyer, Jochen A. H. Akroyd, Jethro Yang, Wenming Kraft, Markus Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title | Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title_full | Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title_fullStr | Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title_full_unstemmed | Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title_short | Investigation on the effect of charge injection from non-thermal plasma on soot formation in laminar coflow diffusion flame |
| title_sort | investigation on the effect of charge injection from non thermal plasma on soot formation in laminar coflow diffusion flame |
| topic | Engineering::Chemical engineering Laminar Coflow Diffusion Flame Soot Volume Fraction |
| url | https://hdl.handle.net/10356/170636 |
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